Yes, het is short for heterozygous. Heterozygous means it has one allele and therefore het red axanthic is fair to say. Technically fire, Mojave, pastel and every other "codominant" gene is heterozygous for the super. However I feel like trying to explaining this to someone who doesn't understand genetics would only complicate the issue. In every other case (as far as I know) we only say het for supposedly recessive genes. Based on the communities terminology het red axanthic is a misnomer.
